Feank beybrlb



' pivoted on the jaw-arm B, the grasping ends UNITED STATES PATENT OFFICE.

FRANK BEYERLE, OF NORTH BRANCH, NEW YORK.

SHANK-LASTlNGi APPARATUS FOR BOOTS AND SHOES.

SPECIFICATION forming part of Letters Patent No. 259,082, dated June 6, 1882, Application filed February 20, 1882. (No model.)

To all whom it may concern 4 Be it known that I, FRANK BEYERLE, of North Branch, in the county of Sullivan and State of New York, have invented a new and Improved Shank-Laster for Boots and Shoes, of which the following is a full, clear, and exact description.

The object of my invention is to facilitate lasting of the shanks of boots and shoes.

The invention consists of two clamps adapted to grasp and hold the edges of the shanks, combined with an apertured sliding plate and a'screw for pressing the plate through the openings of which the clamps are passed toward the grasping ends of the clamps, whereby the grasping ends of the clamps are moved toward each other and the shanks are tightly stretched on the last.

The invention also consists in details ofconstruction, as will be fully described hereinafter.

Reference is to be had to the accompanying drawing, forming a part of this specification, in which alongitudinal perspective view ot'iny improved shank-laster. is shown, parts being in section, and the manner of using theimplement being shown.

The leather-clamps A are each composed of a fixed jaw-arm, B, and movable jaw-arm O,

of both jaws being serrated or roughened on the inner surface. The fixed jaw-arm B is extended beyond the pivot, or provided with an elongation, D, which has an angularprojection, bend, or flange, E, at the end, and the pivoted jaw-arm O is extended only a short distance beyond the pivot, and this end of the jaw-arm O is provided with a longitudinal slot, through which a curved screw-bolt, F, passes, which screw-bolt passes through the jaw-arm B and is attached to the same. A winged nut, G, is screwed on the outer end. of the screwbolt F. A spiral spring, H, is coiled around the screw*bolt F, and presses the lower end (as shown) of the pivoted jaw-arm G from the jawarm B. The graspingends ot'the jaws are curved slightly toward that side of the clamp on which the nut G is,-and the elongation D of the jawarm B is slightly curved from that side of the clamp on which the nut G is, as shown. A

plate, J, is provided with two apertures or openis, it is screwed on this screw.

in gs, K, and with a recess, L, in one of the surfaces. The outer edges of the apertures K are beveled outwardly from that surface of the plate Jprovided with the recess L toward the opposite surface. A screw, M, having one end beveled or rounded, is provided with a transverse handle, N, at the opposite end, and on this screw a nut, O, is loosely mounted--that The end projections or flanges, E, are recessedin their outer edges to adapt these edges to fitclosely against the screw.

P represents the last, and shanks. It the recesses of thcprojectionsEare screwthreaded, the nutO can be dispensed with; but I prefer the construction shown.

The operation is as follows: The edges of the shanks Q are grasped by means of the clamps A, and are firmly held between" the serrated or roughened surfaces of the jaws by screwing the nuts G down tightly. The elongationsDof the jaw-arms B are passed through the openings K of the plate J in such a manner that these elongations will be inclined toward each other, theouter surfaces of the elongations resting against the beveled edges of the openings K, as shown. The end of the screw M is placed into the recess L, and the nut Ois held against the inner surfaces of the projections E, the recessed edges of which rest against the screwM. The screw is then turned, and thereby presses the plate J in the direction of the arrow a, whereby the grasping endsof the clamps which firmly hold the shanks Q the leather will be forced toward each other, andthe as new and desire to secure by Letters Patent- 1. In a shank-laster, the combination, with the fixed jaws B, of the pivoted jaws G, extended beyond the pivots and having their ends slotted, the screw-bolts F, the nuts G,

Having thus described m yinvention, Ielaim 5 and the springs H, substantially as and for plate J, provided with apertures K, having the purpose set forth. their outer edges beveled, and of the screw M,

2. In a shank-laster, the combination, with resting on said plate, substantially as herein the clamps A, provided with extensions D, shown and described, and for the purpose set 5 terminating in flanges E at their ends, of the forth.

plate J, provided with apertures K, the nut O, and the screw M, substantially asherein shown and described, and for the purpose set forth. Witnesses:

3. Ina shank-laster, the combination, with PETER BRAUN,

10 the clamps A, having end projeetions,E, of the JOI-IN JAEGER.

FRANK BEYERLE. 

